For the Inventor, By the Inventor

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Matsudo-shi, Japan

Excell Corporation

USPTO Granted Patents = 23

EPO Patents = 4

Trademarks = 3

Forward Citations = 180

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12 inventors (with patents filed for the assignee):

Tatsuya Nakagawa (16 out of 16 patents)

Yasuo Ezaki (12 out of 12 patents)

Shoji Shimizu (3 out of 3 patents)

4. Takashi Tamura (2 out of 52 patents)

5. Masahiro Kimura (1 out of 99 patents)

6. Takahiro Onishi (1 out of 1 patent)

7. Kuniharu Tobe (1 out of 3 patents)

8. Katsunobu Nishida (1 out of 1 patent)

9. Nobumasa Tatara (1 out of 1 patent)

10. Tatsuhiko Mukawa (1 out of 4 patents)

11. Thomas Christopher Rumler (1 out of 2 patents)

12. Hiroo Kawano (1 out of 2 patents)

13. Takahiro Onishi (0 patent)

23 patents: Sort by Forward Citations

1. 12140199 - Dust cover, suspension device, and method for manufacturing dust cover (2024-11-12),

2. 10221757 - Intake joint structure for turbocharger (2019-03-05),

3. 9822740 - Air intake duct and method for producing same (2017-11-21),

4. 9358718 - Shielding structure of a through-hole formed in a wall of a plastic hollow product (2016-06-07),

5. 7678324 - Method for forming a hollow plastic product (2010-03-16),

6. 7316427 - Hollow plastic product having a connector pipe (2008-01-08),

7. 6537484 - Method for manufacturing a multi-layer plastic pipe (2003-03-25),

8. 6319454 - Method and apparatus for manufacturing a hollow plastic product (2001-11-20),

9. 6251332 - Method for manufacturing a multilayer plastic pipe (2001-06-26),

10. 6119731 - Hollow plastic product (2000-09-19),

11. 5851456 - Method for manufacturing a multi-layer plastic product (1998-12-22),

12. 5723828 - Hollow plastic product having a sound attenuator (1998-03-03),

13. 5720525 - Vehicle seat with anti-rattle arm rest (1998-02-24),

14. 5699835 - Multi-layer plastic hollow pipe (1997-12-23),

15. 5653265 - Hollow plastic product (1997-08-05),

Excell Corporation is a leading provider of innovative technology solutions for businesses. With a focus on delivering excellence in every aspect of our operations, we offer a wide range of services and products to help our clients achieve their goals. From IT consulting to software development, Excell Corporation is committed to exceeding expectations and driving success for our customers.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

23 Patents

#1 in Matsudo-shi

#2,648 in Japan

#26,826 in the World

Matsudo-shi, Japan

Excell Corporation

Forward Citations = 180

12 inventors:

Tatsuya Nakagawa (16 out of 16 patents)

Yasuo Ezaki (12 out of 12 patents)

Shoji Shimizu (3 out of 3 patents)

4. Takashi Tamura (2 out of 52 patents)

5. Masahiro Kimura (1 out of 99 patents)

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